2026 John Deere X300 Select Series X390

2026 John Deere X300 Select Series X390

• 23-hp (17.2-kW) iTorque™ Power System

• Power two-wheel steer

• 4 year/300 hour bumper-to-bumper warranty

Features may include:

The tractor is powered by a John Deere iTorque power system, a combination of engine features and an exclusive hood design that provide superior lugging ability, even cooling, and durability.

A 23-hp (17.2-kW) V-twin engine provides plenty of power and torque to handle tough mulching, mowing, and bagging conditions.

Key engine features include:

• 23 hp (17.2 kW)

• Large 44.3 cu in. (726-cc) displacement

• V-twin air-cooled design that provides smooth, quiet power

Quality features include:

• Cast-iron cylinder liners

• Overhead valves

• Full-pressure lubrication

• Replaceable oil filter

Dual-stage air cleaner V-twin design:

• Excellent power and performance

• Easy starts

• Smooth operation

A flywheel alternator provides plenty of capacity to quickly recharge the battery and power electrical equipment, such as lights or a sprayer:

• 12-amp charging capacity

• Regulated to keep the battery at full charge without risk of overcharging

Large fuel tank and convenient fuel gauge minimize the number of stops for fuel and chance of running out of fuel:

• Fuel tank has a large, 3.3-U.S. gal. (12.5-L) capacity for more hours of operation between refills.

• Large, 3-in. (7.6-cm) diameter fuel tank filler opening makes adding fuel easy.

• Located on the left fender

• Helps eliminate spillage

• Electronic fuel gauge on the dash display allows the operator to easily monitor the amount of fuel in the tank.

The 48-in. (122-cm) Accel Deep Mower Deck is a forged-steel, deep, flat-top design that delivers excellent cut quality, productivity, cleanliness, durability, and versatility. Optimal performance and dispersion of clippings is provided, even at faster mowing speeds or in tall grass:

• 4.83-in. (12.3-cm) depth throughout the entire deck shell for optimum mowing, mulching, and bagging performance

• Forged-steel design eliminates sharp edges and corners where material can build up and diminish mowing performance

• Mower deck is suspended from the vehicle for a smooth and level cut

• Adjustable mower wheels, positioned just above ground level, help reduce scalping

• 0.25-in. (6.4-mm) cut-height increments allow the mower to be set at the desired cut height

• Compatible with high-performance Power Flow™ material collection systems

• For use on X330, X350, X354, X370, X380, X384, X390, X394, X570, X580, X584, and model year 2016 and newer X590 Tractors

Deep mower-deck forging gives excellent cut quality. It allows the cut and suspended material room to exit the deck without getting recut:

• Reducing the amount of recutting enables more power to be used to cut incoming grass, which greatly improves mower capacity.

• Helps maintain excellent cut quality at faster mowing speeds

• Clean flow of material out of discharge area prevents cut material from interfering with cutting the incoming grass, making it possible for the blades to cut incoming material cleanly.